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Control & Prevention

Measures for protecting workers from exposure to, and infection with, SARS-CoV-2, the virus that causes Coronavirus Disease 2019 (COVID-19), depend on the type of work being performed and exposure risk, including potential for interaction with people with suspected or confirmed COVID-19 and contamination of the work environment. Employers should adapt infection control strategies based on a thorough hazard assessment, using appropriate combinations of engineering and administrative controls, safe work practices, and personal protective equipment (PPE) to prevent worker exposures. Some OSHA standards that apply to preventing occupational exposure to SARS-CoV-2 also require employers to train workers on elements of infection prevention, including PPE.

OSHA has developed this interim guidance to help prevent worker exposure to SARS-CoV-2. The general guidance below applies to all U.S. workers and employers. Depending on where their operations fall in OSHA's exposure risk pyramid (Spanish), workers and employers should also consult additional, specific guidance for those at increased risk of exposure in the course of their job duties broken down by exposure risk level.

General Guidance for All Workers and Employers

For all workers, regardless of specific exposure risks, it is always a good practice to:

  • Frequently wash your hands with soap and water for at least 20 seconds. When soap and running water are unavailable, use an alcohol-based hand rub with at least 60% alcohol. Always wash hands that are visibly soiled.
  • Avoid touching your eyes, nose, or mouth with unwashed hands.
  • Practice good respiratory etiquette, including covering coughs and sneezes.
  • Avoid close contact with people who are sick.
  • Stay home if sick.
  • Recognize personal risk factors. According to U.S. Centers for Disease Control and Prevention (CDC), certain people, including older adults and those with underlying conditions such as heart or lung disease or diabetes, are at higher risk for developing more serious complications from COVID-19.

OSHA and the U.S. Department of Health and Human Services (HHS) provide joint guidance for all employers on preparing workplaces for COVID-19 (Spanish).

The CDC has also developed interim guidance for businesses and employers to plan for and respond to COVID-19. The interim guidance is intended to help prevent workplace exposure to acute respiratory illnesses, including COVID-19. The guidance also addresses considerations that may help employers as community transmission of COVID-19 evolves. The guidance is intended for non-healthcare settings; healthcare workers and employers should consult guidance specific to them, including the information below and on the CDC coronavirus webpage.

Interim Guidance for Workers and Employers of Workers at Lower Risk of Exposure

For most types of workers, the risk of infection with SARS-CoV-2 is similar to that of the general American public. Workers whose jobs do not require contact with people known to be, or suspected of being, infected with SARS-CoV-2, nor frequent close contact with (i.e., within 6 feet of) the general public are at lower risk of occupational exposure.

As the Hazard Recognition page explains, workers’ job duties affect their level of occupational risk, and such risk may change as workers take on different tasks within their positions.

Employers and workers in operations where there is no specific exposure hazard should remain aware of the evolving community transmission. Changes in community transmission may warrant additional precautions in some workplaces or for some workers not currently highlighted in this guidance.

Employers should monitor public health communications about COVID-19 recommendations, ensure that workers have access to that information, and collaborate with workers to designate effective means of communicating important COVID-19 information. Frequently check the OSHA and CDC COVID-19 websites for updates.

Interim Guidance for Workers and Employers of Workers at Increased Risk of Occupational Exposure

Certain workers are likely to perform job duties that involve medium, high, or very high occupational exposure risks. Many critical sectors depend on these workers to continue their operations. Examples of workers in these exposure risk groups include those in:

These workers and their employers should remain aware of the evolving community transmission risk.

As discussed on the Hazard Recognition page explains, workers’ job duties affect their level of occupational risk. Employers should assess the hazards to which their workers may be exposed; evaluate the risk of exposure; and, select, implement, and ensure workers use controls to prevent exposure. Control measures may include a combination of engineering and administrative controls, safe work practices, and PPE.

Identify and Isolate Suspected Cases

  • In workplaces where exposure to COVID-19 may occur, prompt identification and isolation of potentially infectious individuals is a critical first step in protecting workers, visitors, and others at the work site.
  • Wherever feasible, immediately isolate individuals suspected of having COVID-19. For example, move potentially infectious individuals to isolation rooms. On an aircraft, if possible and without compromising aviation safety, move potentially infectious individuals to seats away from passengers and crew. In other work sites, move potentially infectious individuals to a location away from workers, customers, and other visitors and with a closed door, if possible.
  • Take steps to limit the spread of the individual's infectious respiratory secretions, including by providing them a facemask and asking them to wear it, if they can tolerate doing so. Note: A surgical mask on a patient or other sick person should not be confused with PPE for a worker; the surgical mask acts to contain potentially infectious respiratory secretions at the source (i.e., the person's nose and mouth).
  • After isolation, the next steps depend on the type of workplace. For example:
    • In most types of workplaces (i.e., those outside of healthcare):
      • Isolated individuals should leave the work site as soon as possible. Depending on the severity of the isolated individual's illness, he or she might be able to return home or seek medical care on his or her own, but some individuals may need emergency medical services.
    • In healthcare workplaces:
      • If possible, isolate patients suspected of having COVID-19 separately from those with confirmed cases of the virus to prevent further transmission, including in screening, triage, or healthcare facilities.
      • Restrict the number of personnel entering isolation areas, including the room of a patient with suspected or confirmed COVID-19.
      • Protect workers in close contact* with the sick person by using additional engineering and administrative controls, safe work practices, and PPE.
      • Sick workers should leave the work site as soon as possible. Depending on the severity of the isolated worker's illness, he or she might be able to return home or seek medical care on his or her own, but some individuals may need emergency medical services.

*CDC defines close contact as being within about 6 feet of an infected person while not wearing recommended PPE. Close contact also includes instances where there is direct contact with infectious secretions while not wearing recommended PPE. Close contact generally does not include brief interactions, such as walking past a person.

Environmental Cleaning and Decontamination 

When people touch a surface or object contaminated with SARS-CoV-2, the virus that causes COVID-19, and then touch their own eyes, noses, or mouths, they may expose themselves to the virus.

Early information from the CDC, the National Institutes of Health, and other study partners suggests that SARS-CoV-2 can survive on certain types of surfaces, such as plastic and stainless steel, for 2-3 days. However, because the transmissibility of SARS-CoV-2 from contaminated environmental surfaces and objects is still not fully understood, employers should carefully evaluate whether or not work areas occupied by people suspected to have the virus may have been contaminated and whether or not they need to be decontaminated in response.

The CDC provides instructions for environmental cleaning and disinfection for various types of workplaces, including:

Employers operating workplaces during the COVID-19 pandemic should continue routine cleaning and other housekeeping practices in any facilities that remain open to workers or others. Employers who need to clean and disinfect environments potentially contaminated with SARS-CoV-2 should use EPA-registered disinfectants with label claims to be effective against SARS-CoV-2. Routine cleaning and disinfection procedures (e.g., using cleaners and water to pre-clean surfaces before applying an EPA-registered disinfectant to frequently touched surfaces or objects for appropriate contact times as indicated on the product's label) are appropriate for SARS-CoV-2, including in patient care areas in healthcare settings in which aerosol-generating procedures are performed.

Workers who conduct cleaning tasks must be protected from exposure to hazardous chemicals used in these tasks. In these cases, the PPE (29 CFR 1910 Subpart I) and Hazard Communication (29 CFR 1910.1200) standards may apply, and workers may need appropriate PPE to prevent exposure to the chemicals. If workers need respirators, they must be used in the context of a comprehensive respiratory protection program that meets the requirements of OSHA's Respiratory Protection standard (29 CFR 1910.134) and includes medical exams, fit testing, and training.

Cleaning chemicals' Safety Data Sheets and other manufacturer instructions can provide additional guidance about what PPE workers need to use the chemicals safely.

Do not use compressed air or water sprays to clean potentially contaminated surfaces, as these techniques may aerosolize infectious material. More information about protecting environmental services workers is included in the worker-specific section, below.

See the interim guidance for specific worker groups and their employers, below, for further information.

Worker Training

Train all workers with reasonably anticipated occupational exposure to SARS-CoV-2 (as described in this document) about the sources of exposure to the virus, the hazards associated with that exposure, and appropriate workplace protocols in place to prevent or reduce the likelihood of exposure. Training should include information about how to isolate individuals with suspected or confirmed COVID-19 or other infectious diseases, and how to report possible cases. Training must be offered during scheduled work times and at no cost to the employee.

Workers required to use PPE must be trained. This training includes when to use PPE; what PPE is necessary; how to properly don (put on), use, and doff (take off) PPE; how to properly dispose of or disinfect, inspect for damage, and maintain PPE; and the limitations of PPE. Applicable standards include the PPE (29 CFR 1910.132), Eye and Face Protection (29 CFR 1910.133), Hand Protection (29 CFR 1910.138), and Respiratory Protection (29 CFR 1910.134) standards. The OSHA website offers a variety of training videos about respiratory protection.

When the potential exists for exposure to human blood, certain body fluids, or other potentially infectious materials, workers must receive the training required by the Bloodborne Pathogens (BBP) standard (29 CFR 1910.1030), including information about how to recognize tasks that may involve exposure and the methods, such as engineering controls, work practices, and PPE, to reduce exposure. Further information on OSHA's BBP training regulations and policies is available for employers and workers on the OSHA Bloodborne Pathogens and Needlestick Prevention Safety and Health Topics page.

OSHA's Training and Reference Materials Library contains training and reference materials developed by the OSHA Directorate of Training and Education as well as links to other related sites. The materials listed for Bloodborne Pathogens, PPE, Respiratory Protection, and SARS may provide additional material for employers to use in preparing training for their workers.

OSHA's Personal Protective Equipment Safety and Health Topics page also provides information on training in the use of PPE.

Workers with Increased Susceptibility for SARS-CoV-2 Infection or Complications

Identify workers who may be at increased susceptibility for SARS-CoV-2 infection or complications from COVID-19 and consider adjusting their work responsibilities or locations to minimize exposure. Other flexibilities, if feasible, can help prevent potential exposures among workers who have diabetes, heart or lung issues, or other immunocompromising health conditions.

Personal Protective Equipment Considerations

The interim guidance for specific worker groups and their employers includes recommended PPE ensembles for various types of activities that workers will perform. In general:

  • PPE should be selected based on the results of an employer's hazard assessment and workers specific job duties.
  • When disposable gloves are used, workers should typically use a single pair of nitrile exam gloves. Change gloves if they become torn or visibly contaminated with blood or body fluids.
  • When eye protection is needed, use goggles or face shields. Personal eyeglasses are not considered adequate eye protection.
  • If workers need respirators, they must be used in the context of a comprehensive respiratory protection program that meets the requirements of OSHA's Respiratory Protection standard (29 CFR 1910.134) and includes medical exams, fit testing, and training.
    • Surgical masks are not respirators and do not provide the same level of protection to workers as properly-fitted respirators.
  • If there are shortages of PPE items, such as respirators or gowns, they should be prioritized for high-hazard activities.
    • Workers need respiratory protection when performing or while present for aerosol-generating procedures, including cardiopulmonary resuscitation (CPR) and intubation.
    • Workers must be protected against exposure to human blood, body fluids, other potentially infectious materials, and hazardous chemicals, and contaminated environmental surfaces.
  • CDC provides strategies for optimizing the supply of PPE, including guidance on extended use and limited reuse of N95 filtering facepiece respirators (FFRs) and methods for decontaminating and reusing disposable filtering facepiece respirators during crises.
    • These guidelines are intended for use in healthcare but may help employers in other sectors optimize their PPE supplies, as well.
  • After removing PPE, always wash hands with soap and water for at least 20 seconds, if available. Ensure that hand hygiene facilities (e.g., sink or alcohol-based hand rub) are readily available at the point of use (e.g., at or adjacent to the PPE removal area).
  • Employers should establish, and ensure workers follow, standard operating procedures for cleaning (including laundering) PPE and items such as uniforms or laboratory coats intended to function as PPE, as well as for maintaining, storing, and disposing of PPE. When PPE is contaminated with human blood, body fluids, or other potentially infectious materials, employers must follow applicable requirements of the Bloodborne Pathogens standard (29 CFR 1910.1030) with respect to laundering. OSHA’s Enforcement Procedures for the Occupational Exposure to Bloodborne Pathogens (CPL 02-02-069) provide additional information.

Employers in all sectors may experience shortages of PPE, including gowns, face shields, face masks, and respirators, as a result of the COVID-19 pandemic. These shortages critically impact the ability of the U.S. healthcare system to provide care for the most seriously ill COVID-19 patients. However, employers outside of healthcare also may experience the effects of shortages as PPE supplies are diverted to healthcare facilities where they are most needed.

Although employers are always responsible for complying with OSHA's PPE standards (29 CFR 1910 Subpart I), including the Respiratory Protection standard (29 CFR 1910.134), whenever they apply, OSHA is providing temporary enforcement flexibility for certain requirements under these and other health standards.

Interim guidance for specific worker groups and their employers

This section provides information for specific worker groups and their employers who may have potential exposures to SARS-CoV-2. Guidance for each worker group generally follows the hierarchy of controls, including engineering controls, administrative controls, safe work practices, and PPE. However, not all types of controls are provided in each section; in those cases, employers and workers should consult the interim general guidance for U.S. workers and employers of workers with potential occupational exposures to SARS-CoV-2, above.

OSHA provides guidance and resources for employers and workers on the control and prevention of COVID-19. Some sections of this guidance apply to all workers and employers, while other sections focus on those at lower risk of exposure and those with increased risk of exposure, including workers involved in: